SACair Forum

hey so i have a ca m15a4 cqb compact seal....one day i started shooting it and there were no problem, then all of a sudden it starting making a grinding noise..even with the grinding it will still shoot..i believe it is the gears but not quit sure

sounds like gear or piston.

ight thats what i was going to do but i just wanted to see if it was something simpler than wat i was thinking